package com.zrwl.poscloud.commons.utils;

import org.springframework.beans.BeanUtils;
import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;

import java.util.HashSet;
import java.util.Set;

/**
 * @author 刘思童
 * @create 2022-06-17 17:56
 **/
public class BeanUtilsPlus {

    public static String[] getNullPropertyNames(Object source) {
        final BeanWrapper src = new BeanWrapperImpl(source);
        java.beans.PropertyDescriptor[] pds = src.getPropertyDescriptors();

        Set<String> emptyNames = new HashSet<>();
        for (java.beans.PropertyDescriptor pd : pds) {
            Object srcValue = src.getPropertyValue(pd.getName());
            if (srcValue == null) emptyNames.add(pd.getName());
            try {
                if ((int) srcValue == -1) emptyNames.add(pd.getName());
            } catch (Exception e) {

            }
        }
        String[] result = new String[emptyNames.size()];
        return emptyNames.toArray(result);
    }

    public static void copyProperties(Object source, Object target) {
        BeanUtils.copyProperties(source, target, getNullPropertyNames(source));
    }
}
